There is a deduction for energy-efficient commercial buildings property. The amount of the deduction depends on energy savings achieved and whether the work was done meeting wage and apprenticeship requirements. But a district court said an S corporation that installed energy-efficient lighting didn’t qualify for this deduction (the case involved the old deduction rules, but the core of these rules is the same now). The reason: the corporation was not a designer of the energy-efficient commercial building property as required for the deduction. #IdeaoftheDay